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Finding the Fourth Proportional to 361,414.80, 541,733.40 and 136,688.40

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Solution

The fourth proportional to 361,414.80, 541,733.40 and 136,688.40 is: 204,885.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,414.80 : 541,733.40 = 136,688.40 : x
  2. Step 2: Convert to fraction form
    361,414.80/541,733.40 = 136,688.40/x
  3. Step 3: Cross multiply
    361,414.80x = 541,733.40 × 136,688.40
  4. Step 4: Simplify right side
    361,414.80x = 74,048,671,672.56
  5. Step 5: Solve for x
    x = 74,048,671,672.56/361,414.80
  6. Step 6: Final answer
    x = 204,885.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.